Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 52-1052757

MANOR MONTESSORI SCHOOL INC

Tax-exempt · POTOMAC, MD 20854

Financials

$3.8M$3.5M2023$3.7M$3.7M2024
Revenue Expenses · by fiscal year end
Financials of MANOR MONTESSORI SCHOOL INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
July 31, 2025990$3,736,387$3,718,386$18,001$3,847,556$672,794$3,174,762
July 31, 2024990$3,829,955$3,524,345$305,610$4,018,273$861,512$3,156,761
Financial details: 990 for the year ended July 31, 2025

Revenue

Contributions, gifts and grants
$1,535
Program service revenue
$3,640,050
Investment income
$94,802
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$205,000
Other salaries and wages
$2,183,726
Salaries, compensation and benefits (total)
$2,799,864
Professional fundraising fees
$0
Legal fees
$10,360
Accounting fees
$29,013
Occupancy
$475,317
Travel
$6,474
Depreciation
$13,625
Program services (functional)
$3,071,910
Management and general (functional)
$646,476

Balance sheet and other

Total assets, start of year
$4,018,273
Total assets, end of year
$3,847,556
Total liabilities, end of year
$672,794
Net assets, end of year
$3,174,762
Land, buildings and equipment
$161,418
Publicly traded securities
$606,189
Net assets without donor restrictions
$3,174,762
Gross receipts
$3,736,387
Employees
68
Volunteers
2
Year formed
1962
State of legal domicile
MD

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended July 31, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Katherine T DamicoExecutive Director
Trustee or director, Officer, Highest-paid employee
40$205,000$24,311
Marie T Olson MonahanDirector
Trustee or director
1$0$0
Steve CassadayDirector
Trustee or director
1$0$0
990 for the year ended July 31, 2024: 3 people
NameTitleHours / weekCompensationOther / benefits
Katherine T DamicoExecutive Director
Trustee or director, Officer, Highest-paid employee
40$195,000$24,363
Steve CassadayDirector
Trustee or director
1$0$0
Marie T Olson MonahanDirector
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
10500 OAKLYN DR, POTOMAC, MD 20854-3936
In care of
% KATHERINE T DAMICO
Principal officer (990 for 2024)
Katherine T Damico, 10500 Oaklyn Drive, Potomac, MD 20854
Signed the 990
KATHERINE T DAMICO, Executive Director
Phone
(301) 299-7400
Return prepared by
Mullins PC

Mission

To educate students.

990 for the year ended July 31, 2025

Program accomplishments

  • The school provides a warm and nurturing education within a montessori curriculum during the regular school year as well as a summer camp.
    Expenses $3,071,910 · revenue $3,640,050

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in July, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025July 31, 2026December 15, 2026Not due yet
2024July 31, 2025December 15, 2025990 on file
2023July 31, 2024December 16, 2024990 on file

IRS record

EIN
52-1052757
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1976
Accounting year ends
July
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B21Z)
Assets (IRS master file)
$3,847,556
Income (IRS master file)
$3,736,387

Filing history

FormYear endedRevenueExpensesAssetsReturn
990July 2025$3,736,387$3,718,386$3,847,556XML
990July 2024$3,829,955$3,524,345$4,018,273XML
990July 2023$4,236,399$3,225,530$3,487,530IRS
990July 2022$2,938,202$3,225,328$2,218,365IRS
990July 2021–––IRS
990July 2019–––IRS
990July 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-1052757).

Questions about MANOR MONTESSORI SCHOOL INC

What is the EIN of MANOR MONTESSORI SCHOOL INC?
The employer identification number (EIN) of MANOR MONTESSORI SCHOOL INC is 52-1052757.
Is MANOR MONTESSORI SCHOOL INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1976.
Are donations to MANOR MONTESSORI SCHOOL INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MANOR MONTESSORI SCHOOL INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of MANOR MONTESSORI SCHOOL INC due?
The return for tax year 2025 (the year ending July 31, 2026) is due December 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MANOR MONTESSORI SCHOOL INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended July 2025.
Who is the principal officer of MANOR MONTESSORI SCHOOL INC?
The 990 for the year ended July 31, 2025 names Katherine T Damico.
Who are the officers and directors of MANOR MONTESSORI SCHOOL INC?
The 990 for the year ended July 31, 2025 lists 3 people; 1 received compensation from the organization, the highest $205,000 (Katherine T Damico, Executive Director).
How much revenue does MANOR MONTESSORI SCHOOL INC have?
On its 990 for the year ended July 31, 2025 it reported revenue of $3,736,387, expenses of $3,718,386 and total assets of $3,847,556 at year end.

Other nonprofits in POTOMAC

All nonprofits in POTOMAC · Maryland · Education